Insight on the effect of surface modification by carbon materials on the Ionic Liquid Electric Double Layer Charge Storage properties

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Costa, R (Author) FCUP; Carlos M Pereira (Author) FCUP; Silva, F (Author) FCUP

Journal

Title: Electrochimica Acta

Vol. 176

Pages: 880-886

ISSN: 0013-4686

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00G-NAB

DOI: 10.1016/j.electacta.2015.06.142

Abstract (EN): Development of new and better performing energy storage devices rely on the use of innovative materials. The combination of nanostructured materials with high specific area, such as graphene, and conventional electrode materials such as Glassy Carbon (GC) and the use of the composite electrode in ionic liquids (IL) are considered to be a promising strategy for improved energy storage devices. Following our previous studies of electrochemical interfaces involving 1-butyl-3-methylimidazolium (tris(pentafluoroethyl) trifluorophosphate) ([C4MIM][FAP]) ionic liquid and Hg, Au, Pt and GC we extended the search for better electrochemical performance by preparing GC electrode surfaces modified with different carbon materials (reduced graphene oxide, reduced graphite oxide and graphite). Cyclic voltammetry of these electrode surfaces in [C4MIM][FAP] ionic liquid shows a 100 fold increase in the capacitive current of the composite electrode when compared with plain GC electrode.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7